Alkylhomopiperonylamins and the process of making them.



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HERMAN DECKER), 0F HANOVER, GERMANY, ASSllIGINQR T0 EARBENFABRIKEN VOTtilfl. ERIED'B BAYER 65 G0, 020 ELBEIlETELD, L-rELltlVMilFiZ', A CtJIttPORATION 0F GERMANY.

ALKYLHOMOPIJPERDNYI|.AMIN'$ AND THE PROCESS 01 MAKING THEM.

Specification. of Letters Patent.

intense.

No Drawing.

To all whom it may concern doctor of philosophy, the German Empire, residing Germany, have invented and the Process of Making Them,

the following is a specification.

I have found that the hitherto unknown The methylhomopip'eronylamin thus-.obtained is a colorless oil boiling at.l56-158. (QtInIXL) It forms crystalline salts e. g.

' with carbonic acid a white fine crystalline carbonate melting at 7 2-7 5 (3., with hydrochloric acid white glitterin sheets melting at 183-185 O. easily solub e in water an alcohol.

easily soluble in water and alcohol and diflicultly soluble in acetic ether from which it crystallizes in brilliant white sheets melt-in at 135 to 136 C.

By treating the a lkylhomo iperonylamins with anhydrous formic aci and splitting oil water from the formates the formyl compounds are obtained, which can be condensed with acid dehydrating agents to the salts of hydrastinin respectively its homologues.

The formylmethylhomopiperonylamin is for instance a colorless thick oil easily soluble in benzene, alcohol, ligroin and 1nsoluble in water. The formylethylhomopipen Patented Slept. $3, 11.913.

Application flied November 25, 1912. Serial No. ?33,351.

allcylho1n ipiperonylamins can be obtained by treating the condensation products derived lrom aldehydcs and homopiperony1- amin (C H NOQ withhalogenalkyls such as CHJ; O l l l, etc, and decomposing these products. The reaction proceeds tor in stance in accordance with the following equations:

CHC au- O onylamin is obtained in an analogous manner.

In order to illustrate the new process more fully the following example is given, the parts being by weight:253 arts of the condensation product C H N 2 melting at 36 C. (obtained by heating 106 parts of benzaldehyde with 165 parts of homopiperonylamin for half an hour to 100 C.) are heated with 142 parts of OH I and the necessary quantity of benzene to dissolve the condensation product for 5 hours to 100 C. and in absence of air and water. The product of addition thus produced is decomposed with steam until the smell of henzaldehyde has disappeared. The remaining acid solution is rendered alkaline with caustic soda and the base is distilled with steam and evaporated together with hydrochloric acid. The methylhomopiperonylamin can be obtained in a pure state from its chlorohydrate by treating this salt with alkali and being colorless oils which form white crystalline salts enerally soluble in alcohol and water and eing converted by treatment with anhydrous formic acid into formylalkylhomopiperonylamins being colorless thick oils soluble in most organic solvents and insoluble in water, which are obtained b treating the condensation roducts e. g. CZ H NO with halogenalkyl and decomposing these addition products, substantially as described.

2. The herein described methylhomopiperonylamin being. a colorless oil boiling at 156-158 C. (24 mm.) .which forms with hydrochloric acid white brilliant sheets meltin at 178180 0., easily soluble in alcohol an water and being converted by treatment with anhydrous formic acid into the formylmethylhomo iperonylamin, which is a colorless thick 011 easily soluble in benzene, alcohol, ligroin and insoluble in water, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of two subscribing wltnesses.

HERMAN DECKER. [L. s.] Witnesses:

HELEN N UFER, ALBERT NUFER. 

